Buffer device for welding wire, welding system and welding robot

Abstract

The invention provides a buffer device for a welding wire. The buffer device for the welding wire is arranged between a first wire feeding part and a second wire feeding part, and one end of a wire feeding inner pipe is fixedly connected with a welding device body; the other end of the wire feeding inner pipe can axially move; a feeding sleeve is arranged at the outer part of the wire feeding inner pipe in a sleeving manner; and at least a part of the feeding sleeve is an axial telescopic elastic pipe. According to the buffer device, a buffer space is provided for the welding wire, the situation that the welding wire is blocked as the curvature of a wire feeding pipe is large due to relatively large welding wire back pulling quantity is reduced, the diameter of a protection pipe is relatively small, mass of the wire feeding pipe is reduced, gravity of the welding wire and inner and outer protection pipes is further reduced, friction force between the welding wire and the inner and outer protection pipes is further reduced, and precision of the welding wire buffer device is improved. According to a welding robot adopting the welding wire buffer device and a welding system thereof, the structure of welding equipment is simplified, besides, manufacturing cost is reduced, the production cycle is shortened, and economic practicability of the welding robot and the welding system thereof is improved.

Description

technical field [0001] The invention relates to a device for welding, in particular to a buffer device for welding wire. Background technique [0002] With the development of welding technology, especially with the development of welding automation, gas metal arc welding with high welding efficiency and good weld quality has been more and more widely used. Since the short-circuit transition used in gas metal arc welding has the disadvantages of large welding spatter, relevant personnel have found that two wire feeders, one in front and one in the back, can be used to synchronously drive the welding wire to advance and retreat periodically, thereby promoting the welding wire machine. Sexual short circuit to achieve welding working status in less spatter mode. Due to the mismatch of the two wire feeders, the response of the wire feeding system is slow during the welding process, which affects the efficiency of the welding operation and the quality of the weld. There is there...

AI Technical Summary

Problems solved by technology

Due to the need for the welding core to bend and deform in the guide hose, the guide hose needs a thicker diameter, which directly leads to the large volume and weight of the guide hose and even the buffer device used for the welding wire

The buffer device for welding wire can be applied to the automatic welding system, and can also be applied to manual work; the buffer device for welding wire is bulky and heavy, which is not conducive to accurate positioning in the automatic welding process, especially not conducive to long-term manual work. Welding will increase the weight burden of welders, quickly consume workers' physical energy, and even affect the quality of welding

In addition, the large-diameter guide hose is not conducive to the storage and organization of the welding machine system or wire feeding device when moving

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